14.3 RU3 and RU4 Endpoint Protection clients fail to install. Error 1603.

Products

• Endpoint Protection
• Endpoint Security

Issue/Introduction

Symantec Endpoint Protection (SEP) 14.3 RU3 and RU4 clients fail to install with Error 1603. Looking at C:\ProgramData\Symantec\Symantec Endpoint Protection\CurrentVersion\Data\Install\Logs\
SIS_INST.log shows the following:

2021-12-22T22:33:06.401Z ERROR U SIS openImpl Failed to create file. [\??\C:\ProgramData\Symantec\Symantec Endpoint Protection\14.3.5413.3000.105\Data\EdrEpmpCStorage.dat] Status: 0xC0000043 = A file cannot be opened because the share access flags are incompatible.
2021-12-22T22:33:06.401Z ERROR U SIS CopyFile: failed to open source with error 0xC0000043 = A file cannot be opened because the share access flags are incompatible.
2021-12-22T22:33:06.401Z ERROR U SIS
2021-12-22T22:33:06.401Z ERROR U SIS Dumping action parameters from the script:
2021-12-22T22:33:06.401Z ERROR U SIS SrcPath=[C:\ProgramData\Symantec\Symantec Endpoint Protection\14.3.5413.3000.105\Data\EdrEpmpCStorage.dat]
2021-12-22T22:33:06.401Z ERROR U SIS DestPath=[C:\ProgramData\Symantec\Symantec Endpoint Protection\14.3.5413.3000.105\Data\EdrEpmpCStorage.dat.cln]
2021-12-22T22:33:06.401Z INFO U SIS ExecuteScript() - Successfully set failure event.
2021-12-22T22:33:06.401Z INFO U SIS ExecuteScript() returning ACTION_FAILED_WITH_ROLLBACK
2021-12-22T22:33:06.401Z INFO U SIS
2021-12-22T22:33:06.401Z INFO U SIS script completed with status: ACTION_FAILED_WITH_ROLLBACK
2021-12-22T22:33:06.401Z INFO r SIS TransitionToEnteringRollbackScript() - success
Troubleshooting steps performed?: -Error 1603 Tried to Uninstall using clean wipe

Cause

Under Investigation

Resolution

We're investigating this issue and will update this document when a solution becomes available. 

Additional Information

CRE-9044